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Bacchisa fortunei
In 3 days ~10% in a week ~20%
Bacchisa fortunei, or the blue pear twig borer, is a species of beetle in the family Cerambycidae. It was described by Thomson in 1857. It is known from Japan. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tokyo | 🇯🇵 Japan |
Rare
Under 5% of wildlife watchers report a Blue Pear Twig Borer sighting in Tokyo on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 534th most-seen of the 1013 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May
In that month about 10% of wildlife watchers report a Blue Pear Twig Borer in Tokyo on a given day, against under 5% in June to April, the lowest months.
Only Tokyo, in our data
Tokyo is the only city on Wallace's Line with enough records to rate Blue Pear Twig Borer sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Cerambycidae
The closest relatives of the Blue Pear Twig Borer that you can see in Tokyo (family Cerambycidae, Longhorn Beetles) are Citrus Longhorn Beetle (about 10%), Paraglenea fortunei (about 10%) and Aeolesthes chrysothrix (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue Pear Twig Borer is recorded against all the insects logged in Tokyo (15 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
